Shoe-last.



.0. PAULSEUD. SHOE LAST.

APPLICATION I ILI ZD MAR. 22, 1911.|

V WzT-mzsses:

Patented Dec. 24, 1912;-

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STATE$ PATENT OFFICE.

ULE PA ULSRUD, OF ST. PAUIi, MINNESOTA, ASSIQNOR OF ONE-HALF TO WILLIAMH.

ODONI-TELL, OF ST. PAUL, MINNESOTA.

SHOE-LAST.

To all to/tom it may concern Be it known that I, OLE PAULSRUD, a

citizen of the United States, residing at St.

Paul, in the county of Ramsey and State of Minnesota, have invented anew and useful Improvement in Shoe-Lasts of which the followingis aspecification.

My invention relates to an improved shoe last and its object is toprovide a lastof the hinged type havingparts which may be readilyseparated to provide for the use of various forms and stylesof-toe-parts in connection with the same heel-part and at the same timeallow a free and perfectly pivoted action of the parts upon each otheror inserting the last in a shoe'and rcmoving it. My inventionalsoprovides for an automatic locking of the last in its normal or extendedposition.

In the drawing with which I have illustrated. my device and which formspart of this specification, Figure 1 is an elevation of my hinged lastin its normal or locked osition' Fi 2 is a art elevation of In devicewith-the last parts in flexed position; Fig. 3 is a View partly insection showing the last-parts in median position to be separated andalso showing an alternative form of the latch; I 4 is an elevation ofthe toe-part of the last, and Fig. 5 IS an elevation of the heel-part oithe last.

In the above drawing I have illustrated a hinged last formed in twoseparable parts, a toe-part A and a heel-part 13 connected by a hingedmechanism G. T he two parts and B when in normal position as shown inFig. 1 form a last of the ordinary shape used in lasting shoes. It isevident that this structure may be used in connection with what istermed the first last and may be used as an ordinary boot-tree.

The toe-part of the last comprises the portion of a last ordinarilyfitted in the toe of the shoe and is cut immediately back of theinstepvwith a rearwardly beveled face 2 having a notch 3 near itsbottom. The heel-part B is" formed with a forwardly beveled sidedterminating in an angular portion 5 fitted into and engaging the notch3' of the toe-part when the parts A and. B are in their normal position.The heel-part B supplements the toe'part A as described to form acomplete lasting iorm. The heel- Specification of Letters Patent.

Application filed March 22, 1911.

Serial No. 616,071.

on its sole for upsetting heel nails and a spindle socket 7 in its top;

The hingemeehanism C is formed with its fixed parts connected to theheel B and consists of a hinge plate 8 of roughly rectangular forminserted in aslot 9 extending vertically in the forward orv toe side of"the heel-part and on its middle line. The hinge plate 8 is fixed to theheel-part B by pins 10 and 1.1 passing through the heel and the plate,and projects in front of theheel part and into a slot 12 in thetoe-part. In the front. side of the hinge plate 8 is a horizontal pivotslot 13 opening to the edge of the plate ted to act as a bearing for thehinge pin'or I Patented Dec. 24,1912:

part B has a protecting met l plate 6 fixed pintle 15 which extendsacross the slot and through the sides of the toe-part. Immediatelywithin the front side of the hinge plate 8 is a guide slot 16communicating with the opposite sides of slot 12 outward from its inwardextremity. This slot 16 is formed as an arc with the bearing extremityof the hinge slot asa center and is fitted to receive the guide pin 17whichextends across the slot 12 in the toe-part and permits a restrictedpivotal movement of the hinge plate about the hinge pin 15. .lVhen theguide pin 17 is in either the upper or lower recesses or branches 1S and19 ofthe guide slot 16 it is impossible for the hinge plate togetherwith the heel-part to which it is connected to be removed from the guideand hinge pins 17 and 15 in the toe-part at the same time permittingtheirpivotal movement upon each other. \Vhen the hinge plate'is broughtinto such a-position relative to the toe-part, that the giude pin lifisin line with the hinge slot 13 of the plate the hinge plate ma beremoved from the toe;

part by a movement parallel with the guide and hinge pins 17 and 15. Itis evident that the position of the two parts A'and B in which they maybe separated may bedetermined by the relative positioning of the guideand binge pins 17 and 15 in the toe part 01 the last. The upper andlower recesses of the guide slot 16 are accommodated to the positions ofthe heel part B relative to the toe A in its normal and flexedpositions. The slot 12 in the toe-part A. is titted in width to thehinge plate 8 preventing lost motion laterally between the parts of thelast.

The upper front portion of the hinge plate 8 is formed with a circularcurve 20 trom the hinge pin bearing as a center which bears againstastop pin 21 in the toe-part. The stop pin is so located with relation tothe hinge and guide pins 15 and 17 that the hinge plate 8 is free to bewithdrawn from the toe-part 'in its separable position. A latch 22 ispivoted on the hinge plate 8 within the slot 9 of the heel part andadapted to engage the stop pin 21 at its extremity when the last parts Aand B are in their normal position as shown in Fig. 1. The latch 22 ispivoted to the hinge plate 8 by means of a pivot piece 23 formedintegral with the latch 22 and ordinarily stampedfrom the same piece ofmetal with the latch 22. The pivot piece 23 has aconst-ricted neck 21and fits into the recess in the hinge plate so formed as to allow arestricted movement of the latch. A backwardly ex tending triggerportion 25 of the latch 22 is engaged by a spring 26 mounted on thehinge plate 8 and is normally held in position to engage the stop pin 21of the toepart. With the latch in engagement with the stop pin 21 asshown in Fig. 1, the heelpart cannot be rotated on the hinge pin 15 andthe last parts A and Bare locked with relation to each other. Bydepressing the trigger 25 of the latch 22 its engaging extreinity israised from the stop pin 21 permitting the movement of the hinge plate 8and heelpart B about the hinge pin 15. The stop pin 21 during thismovement traverses thecurvcd edge 20 of the hinge plate between thehinge plate and the latch 22- and the-last parts may assume the flexedposition shown in Fig. 2 which is the position in which the last isintroduced into a 'gfshoe. Further movement in this direction isprevented by the limits of the upper recess 18 of the guide slot- 16impinging on the guide pin 17. In reaching this position the last partspassed through the position shown in Fig. 3 in which the guide and hingepins 17 and 15 lie in the hinge slot. 13 of the hinge plate 8 and theparts. A and B may be separated. last however, no tension is ordinarily,brought to bear upon the heel B at this time and the rotation oftheparts is carried on to the position shown in 2 in which i he guidepin-1? lies in the recess 19 and separation of the parts A. and B isimpossible. I

In connection with the hingemechanism C a key spindle D isused'asillustrated in. F 2. The key D has a body portion 28 which may beoi the form shown or any form suitable to be grasped by the hand and aspindle 29 fitted to the spindle socket 7 of the heel-part B. A lug 30-is formed In using the on the body 28 and serves to impinge upon thetrigger portion 25 of the'latch 22 when the spindle is inserted in thespindle socket,

and'trip it thus freeing the latch from the stop pin 21 and permittingthe flexing movement of the last-parts. W'hen the last is about; to beinserted in a shoe the last parts are in-the position shown in Fig. 2.The toe-part is then inserted in the toe of the shoe, and by the aid ofthe key D the heelpart is forced down to the normal position shown inFig. 1. In order to permit the locking of the last-parts in thisposition as soon as it is reached, .the key may be so placed in theheel-part that the tripping lug 30 does not engage the trigger 25 but.

rests at one side of .it thus allowing the spring 26 to force the latch22 into engagement with the stop pin 21 as soon as the last-parts reachtheir normal position.

In my preferred construction shown in Fig. 2 the hinge parts C are solocated in the heel-part B that the trigger 25 lies below the level ofthe top surface 31 of the heel and the tripping of the trigger 25 can besecured only by the formation of a tripping lug 30 on thekey body 28..

Fig. 3 illustrates my alternative construc tion in which the-triggerportion 2-5 of the latch 22 lies above the level of the upper surface 32of the heel-part and the key D having a flat surface 33' suiiicientlybroad to engage the trigger 25 may be used instead of the tripping lug80. It is evident that any convenient means'of. tripping the latch 22will accomplish the end secured by the device shown. 2

By the peculiar structure of my deviceI secure a hinged last'that isvery easily manipulated and has the great advantage over such lasts incommon use of automatically locking in its normal position. But thechief advantage of my device lies in the separableness of its heel andtoe-parts by which a great variety of forms of shoe toes may be usedinconnection with a single heel-part thus eccnomizing in cost andstorage room and permitting the replacement ofa broken heel or toe.

//I11 accordance with the patent statutes l have described theprinciples of operation 01: my invention together with the apparatuswhich 1 now consider to represent the best .'s.'|'.v l enwoonnentthereot but I desire LO have it understood that the construction shownis only illustrative and that the invention can be carried out by othermeans and applied to uses other than those above setiorth parts.

pintle and a pin fixed on one oi said partsand a hinge plate fixed onthe other. of sald'parts, said plate'having a' recess to 1 receive saidpintle and guide pin in one position ofsaid parts and to form a bearingfor 2. A hinge last, comprising, in combination, two cooperatingseparable elements,

one a ,heel part and the other a toe part, a

.pintle on one of said parts a hinge member on the other" of said partshaving a horiz'ontal pivot slot opening to the edge of the hinge memberand formed with branches communicating with its opposite sides outwardfrom its inner extremity, said 'pintle being adaptedto be seated in theinner extr'emity of said slot, and a guide pin carried upon the member"supporting said pintle and adapted to be admitted freely into said.slot when said hinge 'plate'isin horizontal position upon said pintl'e,said guide pin being spaced from said pintle whereby it is adapted toenter the branches of saidslot when said hinge plate is tilted and toprevent the detachment of said hingeplate from the member carrying; saidpintl and guide pin except when said hinge plate is in hori- I zontal'position.

3;, At hinge last, comprising, in combination ,a'heel-part, a toe-partadapted to supplement said heel-part to form a last, a hinge. platefixed to one of said parts and adapted to enter a recess in the other ofsaid par-ts, havinga hinge slot opening on its edge and a guide slotopening on its edge, and pins on said other part adapted to engage saidplate in said slots, whereby said parts may be rotatably and separablyconnected with each other.

4:. A hinge last, comprising heel and toe parts detachably connected toform a last, a hinge plate fixed to one of said parts and adapted toenter a recess in the other of said parts, having a hinge slot openingon its edge and a guide slot opening on its edge, pins on the other lastpart adapted to engage said plate in said slots to connect them duringrotation, and automatic means for locking said last parts in extendedposition.

In testimony whereof, I have signed my name to this specification, inthe presence of two subscribing Witnesses.

. OLE 'PAULSRUD.

Witnesses:

H. L. FISCHER, PAUL S. SMITH.

